A Novel Approach in Skin Care: By-Product Extracts as Natural UV Filters and an Alternative to Synthetic Ones
Open accessAbstract
The cosmetic industry has been focusing on replacing synthetic ingredients with natural ones, taking advantage of their bioactive compounds. This work assessed the biological properties of onion peel (OP) and passion fruit peel (PFP) extracts in topical formulations as an alternative to synthetic antioxidants and UV filters. The extracts were characterized regarding their antioxidant capacity, antibacterial capacity and sun protection factor (SPF) value. Results revealed that the OP extract exhibited better results, which can result from the high concentrations of quercetin, as identified and quantified in HPLC analysis. Afterward, nine formulations of O/W creams were produced with minor changes in the quantity of additives: OP and PFP extract (natural antioxidants and UV filters), BHT (synthetic antioxidant) and oxybenzone (synthetic UV filter). The stability of the formulations was determined for 28 days; it was verified that they remained stable throughout the study period. The assays of the formulations’ antioxidant capacity and SPF value revealed that OP and PFP extracts have some photoprotective properties and are excellent sources of antioxidants. As a result, they can be incorporated in daily moisturizers with SPF and sunscreens replacing and/or diminishing the quantities of synthetic ingredients, reducing their negative effects on human health and the environment.
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The antioxidant capacity is highly influenced by the presence of phenolic compounds in the plant matrix and their concentration.
“The antioxidant capacity is highly influenced by the presence of phenolic compounds in the plant matrix and their concentration.”
From On the Path to Sustainable Cosmetics: Development of a Value-Added Formulation of Solid Shampoo Incorporating Mango Peel Extract (2023) · cites this paper as [38]
All solid shampoo formulations displayed a low oxidation state, with peroxide value always inferior to 5 mEq·kg−1 according to the literature.
“From the results in Figure 6, it can be observed that all the formulations display a low oxidation state, according to the literature, since the PV was always inferior to 5 mEq·kg−1 [38].”
From On the Path to Sustainable Cosmetics: Development of a Value-Added Formulation of Solid Shampoo Incorporating Mango Peel Extract (2023) · cites this paper as [38]
All the formulations display a low oxidation state, according to the literature, since the peroxide value was always inferior to 5 mEq/kg.
“From the results in Figure 6, it can be observed that all the formulations display a low oxidation state, according to the literature, since the PV was always inferior to 5 mEq∙kg−1 [38].”
From On the Path to Sustainable Cosmetics: Development of a Value-Added Formulation of Solid Shampoo Incorporating Mango Peel Extract (2023) · cites this paper as [38]
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References 44 · Cited by 34
- Authors
- Ferreira, S. M., Gomes, S. M., & Santos, L.
- Affiliations
- Universidade do Porto (PT)
- Corresponding author
- Santos, Lúcia
- Venue
- Molecules
- Publisher
- MDPI AG
- Published
- 2023-02-21
- Volume
- 28
- Issue
- 5
- Pages
- 2037
- ISSN
- 1420-3049 (ISSN-L)
- PMC
- PMC10004200
- OpenAlex
- W4321498199
- Cited by
- 34
- References
- 44
- Citations by year
- 2026: 6 · 2025: 12 · 2024: 11 · 2023: 5
- FWCI
- 9.38
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- Molecules (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Portuguese National Funding Agency for Science, Research and Technology (RCAAP Project by FCT) (submittedVersion, other-oa)
- Funders
- ALiCE (LA/P/0045/2020, UIDB/00511/2020, UIDP/00511/2020)
- LEPABE (LA/P/0045/2020, UIDB/00511/2020, UIDP/00511/2020)
- FCT/MCTES (PIDDAC) (LA/P/0045/2020, UIDB/00511/2020, UIDP/00511/2020)
- Topics
- Health Sciences › Medicine › Dermatology › Skin Protection and Aging
- Health Sciences › Medicine › Biochemistry › Phytochemicals and Antioxidant Activities
- Life Sciences › Agricultural and Biological Sciences › Plant Science › Medicinal Plant Research
- Keywords
- onion peel extract, natural UV filters, benzophenone-3, butylated hydroxytoluene, quercetin, antioxidant capacity, antibacterial activity, sun protection factor, topical cream formulation, formulation stability, photoprotection, skin care
- MeSH terms
- Antioxidants, Humans, Plant Extracts, Skin, Sunscreening Agents, Ultraviolet Rays, Skin Care, Sun Protection Factor
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